Routes

routes can be added by creating a file in /etc/sysconfig/network-scripts/
the file should be named for the interface the route will use(i.e. etho) such as route-eth0
here is an example line "64.238.199.200/29 via 10.140.17.1"

Date/Time

to change the time/date in linux use the date command.
example: to set the time use the command "date -s 10:10"

Networking

he is an example of a network config file "/etc/sysconfig/network-scripts/ifcfg-eth0"
# Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
DEVICE=eth0
BOOTPROTO=static
BROADCAST=10.140.17.31
HWADDR=00:50:56:A0:53:A7
IPADDR=10.210.15.13
NETMASK=255.255.255.192
NETWORK=10.140.17.0
ONBOOT=yes

Bonding

# vi /etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE=bond0
IPADDR=142.146.167.
NETWORK=142.146.167.0
NETMASK=255.255.255.128
USERCTL=no
BOOTPROTO=none
ONBOOT=yes

# vi /etc/sysconfig/network-scripts/ifcfg-eth2
Modify/append directive as follows:
DEVICE=eth2
USERCTL=no
ONBOOT=yes
MASTER=bond0
SLAVE=yes
BOOTPROTO=none

# vi /etc/sysconfig/network-scripts/ifcfg-eth3
Make sure file read as follows for eth1 interface:
DEVICE=eth3
USERCTL=no
ONBOOT=yes
MASTER=bond0
SLAVE=yes
BOOTPROTO=none

Load bond driver/module
# vi /etc/modprobe.conf
alias bond0 bonding
options bond0 mode=1 miimon=100

Test configuration
# modprobe bonding
# service network restart
# less /proc/net/bonding/bond0

Working with LVM

Increase swap on LVM

[root@devora1 ~]# lvscan
ACTIVE '/dev/VolGroup00/slash' [768.00 MB] inherit
...
ACTIVE '/dev/VolGroup00/swap' [4.00 GB] inherit
[root@devora1 ~]#
[root@devora1 ~]# swapoff /dev/VolGroup00/swap
[root@devora1 ~]# lvm lvresize /dev/VolGroup00/swap -L +4G
Extending logical volume swap to 8.00 GB
Logical volume swap successfully resized
[root@devora1 ~]# mkswap /dev/VolGroup00/swap
Setting up swapspace version 1, size = 8589930 kB
[root@devora1 ~]# swapon -va
swapon on /dev/VolGroup00/swap
[root@devora1 ~]# cat /proc/swaps
Filename Type Size Used Priority
/dev/mapper/VolGroup00-swap partition 8388600 0 -2
[root@devora1 ~]# free
total used free shared buffers cached
Mem: 32953516 235536 32717980 0 28556 109216
-/+ buffers/cache: 97764 32855752
Swap: 8388600 0 8388600
[root@devora1 ~]#

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